package cn.tedu.jdbc;

import java.sql.*;
import java.util.Scanner;

public class JDBCDemo01 {
    public static void main(String[] args) throws SQLException, ClassNotFoundException {
        //加载驱动数据库
        Class.forName("com.mysql.cj.jdbc.Driver");
        //创建数据库连接对象
        Connection connection =DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/tedu?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&rewriteBatchedStatements=true",
                "root",
                "root"
        );
        //创建执行sql语句的对象
        Statement statement = connection.createStatement();
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入用户名:");
        String username = scanner.nextLine();
        System.out.println("请输入密码:");
        String password = scanner.nextLine();
        System.out.println("请输入昵称:");
        String nickname = scanner.nextLine();
        System.out.println("请输入年龄:");
        Integer age = scanner.nextInt();
        //字符串拼接方式执行SQL."+变量名+",将变量的值插入到sql语句中
        String sql = "INSERT INTO userinfo(username,password,nickname,age)" +
                "VALUES('"+username+"','"+password+"','"+nickname+"',"+age+")";

        int i = statement.executeUpdate(sql);
        //关闭数据库连接
        connection.close();
    }
}
